CN101277143A - Cable-joining equipment for multisystem route-joining platform - Google Patents
Cable-joining equipment for multisystem route-joining platform Download PDFInfo
- Publication number
- CN101277143A CN101277143A CNA2008100653229A CN200810065322A CN101277143A CN 101277143 A CN101277143 A CN 101277143A CN A2008100653229 A CNA2008100653229 A CN A2008100653229A CN 200810065322 A CN200810065322 A CN 200810065322A CN 101277143 A CN101277143 A CN 101277143A
- Authority
- CN
- China
- Prior art keywords
- equipment
- poi
- joining
- multisystem
- cable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention discloses a multi-system multiplexing platform cable combining apparatus which comprises power dividers and 3DB electric bridges, a six-frequency combiner 1 and a six-frequency combiner 2. The power dividers and 3DB electric bridges are respectively connected with the six-frequency combiner 1 and six-frequency combiner 2. When the apparatus according to the invention is adopted, the main performance indexes of insertion loss, in-band fluctuation, echo loss, out-of-band rejection, third order inter-modulation, bearing power and the like of the POI are equally improved with a large scale. At the same time the structural volume is reduced with a large scale and the application in the project is facilitated.
Description
Technical field
The present invention relates to a kind of POI (multisystem mixing platform) multisystem cable combination equipment.
Background technology
Along with increase at full speed and the skyscraper of mobile subscriber in the city are more and more, traffic density and covering require also constantly to rise.These architectural scale are big, quality good, and mobile telephone signal is had very strong shielding action.Under environment such as the low layer of building, market place builet below the ground, underground parking, a little less than the mobile communication signal, mobile phone can't normally use, and has formed the blind area and the shadow region of mobile communication; At intermediate floor, because overlapping from different base station signal on every side produces ping-pong, mobile phone frequently switches, even call drop, has had a strong impact on the normal use of mobile phone; At the high level of building, owing to be subjected to the limitation in height of antenna for base station, can't normally cover, also be the blind area of mobile communication.In addition, in some building, though mobile phone can normal talking, user density is big, and BTS channel is crowded, the mobile phone difficulty of reaching the standard grade.
Particularly the network coverage of mobile communication, capacity, quality are the key factors that operator obtains competitive advantage.The network coverage, network capacity, network quality have fundamentally embodied mobile network's service level, are the themes of all mobile network optimization work.
Indoor covering system produces under this background just.Indoor covering is at the indoor user group, is used to improve a kind of successful scheme of mobile communication environment in the building, has obtained extensive use in the mobile communication carrier throughout the country in recent years.
Indoor covering system provides preferable solution for the problems referred to above, and its principle is to utilize the domestic aerial compartment system that the signal of mobile base station is evenly distributed on indoor every nook and cranny, thereby guarantees that room area has desirable signal and covers.The construction of indoor covering system can improve the speech quality in the building comparatively all sidedly, improves the call completion of mobile telephone rate, hews out high-quality indoor mobile communication zone; Simultaneously, use micro cellular system can share the outdoor macro honeycomb traffic, enlarge network capacity, improve mobile network's service level on the whole.
China's existing mobile communication network has the GSM900/DCS1800 (global system for mobile communications/scattered control system) of China Mobile, the GSM900/DCS1800 of CHINAUNICOM and PHS (the individual radio connecting system of CDMA800 (code division multiple access system), China Telecom and Netcom, be Personal Handyphone System), WLAN (WLAN (wireless local area network)), Digital Clustering and other communication systems, also will build up WCDMA (broadband demal multiplex (MUX) access system), CDMA2000, TD-SCDMA 3G systems such as (code division multiple access systems that the time-division is synchronous) successively.The outdoor location network signal can cover by base station separately, and indoor signal can solve by traditional indoor covering system.It is more and more outstanding that yet each operator builds the problems such as repeated construction that covering system brought of oneself respectively.At such problem, the solution of multisystem mixing platform (POI) has been proposed.
POI needing to be mainly used in heavy construction that multiple-network system inserts, the urban operating mechanism, as places such as large-scale museum, subway, railway station, airport, office offices of government.This POI equipment has realized that multiband, many signals close the road function, and the overlapping investment of having avoided indoor distributed system to build is the effective means of the compatible covering of the many network signals of a kind of realization.
As the bridge that connects information source and compartment system, the main effect of POI is the downstream signal of systems such as CDMA, GSM, DCS, PHS, WLAN, 3G and cluster is closed the road, upward signal to each system carries out shunt simultaneously, and curbs the useless interference component between each frequency band as far as possible.
According to system's insulated degree requirement difference, usually POI has two kinds of designs: in the system/downstream signal closes in cable scheme and the system/and downstream signal divides the cable scheme.
Scheme one: in the system/downstream signal closes the cable scheme
Each the system's duplex signaling that comes from the base station respectively inserts POI by a port, and port of equipment antenna feeder side picks out.Downstream signal is presented as that multichannel unification road carries out signal downlink and cover, and the upward signal of user terminal then is by former passage reverse transfer, is that one road signal is divided into multichannel and gets back to the uplink and downlink communication that separately system finishes system respectively.
Scheme two: in the system/downstream signal divides the cable scheme
Each standard (Frequency Division Duplexing (FDD)) system that comes from the base station divides two ports of up-downgoing to insert POI, picks out by latter two port of equipment.Downstream signal is presented as that multichannel unification road covers from Tx mouth output carrying out signal downlink, and the upward signal that user terminal comes then is by other one road Rx data feedback channel reverse transfer, gets back to communication system separately then along separate routes.
For in the employing system/downstream signal closes the existing POI of cable scheme, its structure is as shown in Figure 1.As seen from the figure, there is following shortcoming in this POI equipment: design is too complicated, electric property is poor, the cost height, be difficult for construction.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of POI multisystem cable combination equipment, has simplified product design, has reduced cost and difficulty of construction.
For solving the problems of the technologies described above, the objective of the invention is to be achieved through the following technical solutions.
A kind of cable-joining equipment for multisystem route-joining platform comprises two power splitters and 3DB electric bridge, also comprises six frequency combiners one and six frequency combiners two; Described two power splitters all link to each other respectively with six frequency combiners one and six frequency combiners two with the 3DB electric bridge.
Wherein, described equipment comprises 2 two power splitters and 3 3DB electric bridges.
Wherein, this equipment also comprises port one and port two, links to each other with described six frequency combiners, one, six frequency combiners two respectively.
As can be seen from the above technical solutions, the present invention has following beneficial effect:
(1) performance index have significantly been optimized
Adopt the present invention, the insertion loss of POI, passband fluctuation, return loss, the outer inhibition of band, third order intermodulation and bear main performance index such as power and all have significantly and improve.
(2) significantly reduced structural volume
Owing to substituted combination two and tri-frequency combiner with six frequency combiners, again electric bridge is integrated into mixer inside simultaneously, so just significantly reduced number of devices and volume.
(3) be convenient to product in application in engineering
Owing to reduced product quantity and volume, improved product integrated level and modularization, be convenient to engineering staff's construction, especially can be reduced in the difficulty and the time of field construction greatly.
Description of drawings
Fig. 1 is the internal structure schematic diagram of existing POI multisystem cable combination equipment;
Fig. 2 is the internal structure schematic diagram of POI multisystem cable combination equipment of the present invention;
Fig. 3 is the external structure schematic diagram of POI multisystem cable combination equipment of the present invention;
Fig. 4 is the schematic diagram that multisystem inserts the POI multisystem cable combination equipment among the embodiment.
Embodiment
For ease of the present invention is further understood, now describe the present invention in conjunction with the accompanying drawings.
See also Fig. 2, this figure is depicted as the internal structure schematic diagram of POI multisystem cable combination equipment of the present invention, comprise 2 two power splitters, 3 3DB electric bridges, 2 six frequency combiners, wherein all two power splitters link to each other respectively with six frequency combiners one and six frequency combiners two with the 3DB electric bridge, and six frequency combiners one link to each other with port two (ANT2) with port one (ANT1) respectively with six frequency combiners two.Six frequency combiners one also are connected a port respectively with six frequency combiners two and are used for directly inserting the PHS system.The contour structures of this equipment as shown in Figure 3, performance index are as shown in table 1:
Table 1
The operation principle of this POI multisystem cable combination equipment is: each the system's duplex signaling that comes from the base station respectively inserts POI by an ANT port, and equipment antenna feeder end picks out from another ANT port.Downstream signal is presented as that multichannel synthetic a tunnel is carried out signal downlink to be covered, and the upward signal that user terminal comes then is by former passage reverse transfer, is that one road signal is divided into multichannel and gets back to the uplink and downlink communication that separately system finishes system respectively.
Existing POI equipment performance index as shown in table 2 respectively:
Table 2
With the contrast of the performance index shown in table 1 and the table 2 as can be known, insertion loss of the present invention, passband fluctuation, return loss, the outer inhibition of band, third order intermodulation and bear main performance index such as power and all have significantly and improve.
Below be an Application Example of the present invention (in the present embodiment be example in city underground, to use POI equipment of the present invention):
Business communication network covers needs the communication system that inserts more in the engineering, therefore need POI equipment that each communication system is had the outer inhibition ability of band preferably, descending POI need control the outer spurious emissions of each communication system regiment commander, and up POI need prevent the receiver barrage jamming.Supervisory control system requires working stability reliable, the operating state that can inquire about POI equipment in real time.
Domestic main public mobile communication network comprises at present:
1) main mobile operator is China Mobile and CHINAUNICOM, and China Mobile is runing the GSM net that the whole world is maximum, the user is maximum; There are at present main popular CDMA and two mobile radio communications of GSM in CHINAUNICOM; Two users of company have surpassed hundred million;
2) Personal Handyphone System PHS business has had suitable customers with its cheap telephone expenses advantage fast development throughout the country;
3) FM receiver that increasing consumption electronic product is integrated, FM broadcasting can not fallen behind in the short time;
4) An Quan public security fire-fighting Digital Clustering communication network.
The public mobile communication network that is about in the coming years build up comprises:
A, national departments concerned have been planned the frequency of utilization of following 3G, and a few years from now on will be issued the 3G business licence plate, form the next-generation mobile communications industry, and 3G network is about to step into commercial operation;
B, wireless access technology develop rapidly, and the coming years, making up the high-speed radio local area network (LAN) will be one of main solution of hot spot region;
C, digital tv network.
Because the introducing of this wireless signal comprises mobile GSM900 and DCS1800, the GSM900 of UNICOM and CDMA800, even to consider the 3G of development in the future.If therefore adopt every family operation commercial city to adopt different systems, must can cause overlapping investment so, and the wiring of tunnel and subway concourse is caused great difficulty.
Factor above comprehensive, more rational a kind of coverage mode is to adopt POI equipment of the present invention that the various wireless signals of each operator are closed the road along separate routes, use two identical cover antenna-feedback systems that platform, subway concourse are covered, and use two identical cover leaky cable systems that tunnel system is covered.
The multisystem access device mainly is made up of two parts: POI equipment, low frequency access device.
The wireless system that POI introduces comprises:
The CDMA800 of a, CHINAUNICOM;
The GSM900 of b, China Mobile and CHINAUNICOM;
C, the DCS1800 of China Mobile;
D, reservation 3G frequency range.
The road splitter is closed in the introducing utilization of public security, fire-fighting system 350MHz frequency band signals and FM broadcasting, the low frequency access device is realized.
System inserts schematic diagram as shown in Figure 4.
Present embodiment has following beneficial effect:
1. high reliability.The POI equipment choosing has the components and parts of high reliability in the industry, can non-stop run in continuous 24 hours, and can satisfy the requirement of mean free error time 〉=50000 hour.
2. maintainable.POI equipment adopts modularized design, convenient maintenance and replacement from now on.
3. extensibility.POI equipment should have extensibility, should satisfy present engineering demand, and carries out sufficient reservation in design, can adapt to the needs of following subway construction and Efficiency in Buildings in Tianjin Area mobile subscriber development.To existing connecting system carrier wave subregion dilatation, existing antenna transmission system wire structures can not changed, and do not influence under the situation of original mobile GSM/DCS and the GSM/CDMA of UNICOM network system index in the connecting system, can carry out the carrier frequency dilatation to the one or more systems in the existing network easily.Simultaneously, selected device should realize forming modularization, standardization, maintenance management automation.
4. good process.Relevant printed circuit board (PCB) adopts the above technology of wave-soldering, and big electric current plug-in unit adopts silver-plated or gold-plated technology, and the high-power RF plug-in unit adopts gold-plated technology; Adopt the container of standard steel Equipment cabinets and chassis as POI equipment, steel cabinet, frame, dish and other supporting constructions are all passed through through careful cleaning and antirust processing, can adapt to the environmental condition of subway fully; The metal surface of POI equipment has all been carried out antirust plastic-blasting and has been handled except process and assemble face and plate surface.Simultaneously, the inner surface of enclosed construction has also carried out spraying or has carried out antirust processing, handles to meet the SSPC standard, and the equipment of all batch processes, parts, components and parts all are standardized products, and the equipment of the card of same size, dish and same size is all interchangeable.
More than cable-joining equipment for multisystem route-joining platform provided by the present invention is described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand core concept of the present invention; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (3)
1. a cable-joining equipment for multisystem route-joining platform comprises two power splitters and 3DB electric bridge, it is characterized in that, also comprises six frequency combiners one and six frequency combiners two; Described two power splitters all link to each other respectively with six frequency combiners one and six frequency combiners two with the 3DB electric bridge.
2. cable-joining equipment for multisystem route-joining platform according to claim 1 is characterized in that described equipment comprises 2 two power splitters and 3 3DB electric bridges.
3. as cable-joining equipment for multisystem route-joining platform as described in the claim 2, it is characterized in that this equipment also comprises port one and port two, link to each other with described six frequency combiners, one, six frequency combiners two respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100653229A CN101277143A (en) | 2008-02-01 | 2008-02-01 | Cable-joining equipment for multisystem route-joining platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100653229A CN101277143A (en) | 2008-02-01 | 2008-02-01 | Cable-joining equipment for multisystem route-joining platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101277143A true CN101277143A (en) | 2008-10-01 |
Family
ID=39996194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100653229A Pending CN101277143A (en) | 2008-02-01 | 2008-02-01 | Cable-joining equipment for multisystem route-joining platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101277143A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101834328A (en) * | 2010-03-31 | 2010-09-15 | 安徽科瑞达通信科技有限公司 | Mobile communication POI (Point Of Interface) |
| CN102547771A (en) * | 2010-12-13 | 2012-07-04 | 中国移动通信集团北京有限公司 | Multichannel indoor distribution system and signal transmission method thereof |
| CN102664694A (en) * | 2012-04-25 | 2012-09-12 | 中国联合网络通信有限公司广东省分公司 | Multi-band and multi-signal mixed inter-modulation interference analyzer and analyzing method thereof |
| CN109361044A (en) * | 2018-11-19 | 2019-02-19 | 中邮科通信技术股份有限公司 | Minimize cabinet multisystem mixing platform |
-
2008
- 2008-02-01 CN CNA2008100653229A patent/CN101277143A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101834328A (en) * | 2010-03-31 | 2010-09-15 | 安徽科瑞达通信科技有限公司 | Mobile communication POI (Point Of Interface) |
| CN102547771A (en) * | 2010-12-13 | 2012-07-04 | 中国移动通信集团北京有限公司 | Multichannel indoor distribution system and signal transmission method thereof |
| CN102547771B (en) * | 2010-12-13 | 2014-09-10 | 中国移动通信集团北京有限公司 | Multichannel indoor distribution system and signal transmission method thereof |
| CN102664694A (en) * | 2012-04-25 | 2012-09-12 | 中国联合网络通信有限公司广东省分公司 | Multi-band and multi-signal mixed inter-modulation interference analyzer and analyzing method thereof |
| CN109361044A (en) * | 2018-11-19 | 2019-02-19 | 中邮科通信技术股份有限公司 | Minimize cabinet multisystem mixing platform |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101277483A (en) | Cable-distributing equipment for multisystem route-joining platform | |
| CA2221560C (en) | Cellular communication system having device coupling distribution of antennas to plurality of transceivers | |
| CN102571212B (en) | Indoor optical fiber distribution system | |
| CN101517924A (en) | System for and method of for providing dedicated capacity in a cellular network | |
| CN201234356Y (en) | WiFi and GSM dual mode mobile phone | |
| CN206332853U (en) | Mobile communication distributed coverage system | |
| CN102118757A (en) | Wireless relay device and method for communicating wireless relay device with base station and terminal | |
| CN2829113Y (en) | Multi-network branching and combining system | |
| CN101409567B (en) | Apparatus and method for restraining radio frequency mutual interference between communication systems | |
| CN101277143A (en) | Cable-joining equipment for multisystem route-joining platform | |
| CN201323657Y (en) | A multi-system combination platform cable separating apparatus | |
| CN202425052U (en) | Single-circuit output transmitting and receiving co-cable point of interface (POI) for indoor wireless coverage equipment | |
| KR102124769B1 (en) | Broadband Antenna Unit for Wireless Integrated System | |
| CN202269021U (en) | Multi-system access platform for airport communication | |
| CN102710826B (en) | Mobile terminal data service and voice service multiplexing antenna system and realization method | |
| CN102651873B (en) | Signal transmission method, system and equipment for indoor distribution system | |
| CN203942528U (en) | A kind of wireless coverage strengthens equipment | |
| CN100388825C (en) | Signal loop device and base-station common antenna-feedback system using same | |
| CN202565279U (en) | Remote terminal for fiber far-pulling type wireless distribution system | |
| CN200990601Y (en) | Mobile communication system trunk amplification communication apparatus | |
| CN202196843U (en) | Multiplexer multi-system module | |
| CN101583134B (en) | Wireless composite trunk equipment in railroad and connected transmission method | |
| CN105141362B (en) | Realize the optical fiber distribution system and method for the different location information source access of multichannel | |
| CN2357444Y (en) | Wireless fixed table | |
| CN204145761U (en) | A kind of multi-mode mine wireless communication gateway |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20081001 |